Spring-frog



(No Model.)-

F. C. WEIR.

Y SPRING FROG. No. 499,539. Patented Aug. 20, 1889.

. uw. QN mw @1 /@N @man UNITED STATES PATENT OFFICE6 FREDRIC C. VEIR, OF CINCINNATI, OHIO.

SPRING-FROG.

SPECIFICATION forming part of Letters Patent No. 409,539, dated August 20, 1889. Application led March 30, 1889. Serial No. 305 ,465. (No model.)

To @ZZ whom it may concern.'

Be it known that I, FREDRIC C. VVEIR, a citizen of the United States, and a resident of Cincinnati, in the county of I'Iamilton and Stato of Ohio, have invented certain new and useful Improvements in Spring-Frogs, of which the following is a specification.

My invention relates to an improvement in spring-frogs, the object of which is to provide a strengthening-piece which, in connection with the holding-down device, will prevent the springfrog from rising, and supporting it in its movement, the various features of which will be fully set forth in the description of the accompanying drawings, making a part of this specification, in which- Figure 1 is a top plan view partly in section, showing my improvement in springfrogs. Fig. 2 is a side elevation showing a modification, the rail and strengthening-bar being broken away; and Fig. 3 is adetail side elevation of the construction shown in Fig. 1.

1 2 represent the main rails of thev frog; 3 et, the point-rails. Rail 1 is the movable wing-rail, which is moved forward against the tension of spring (3 by the flange of carwheels, and the recoil of spring forces the rail back after the train has passed.

treat difliculty has been experienced in the breaking of spring-rails and of their rising and creeping-in action. My improvement overcomes this objection by means of the strengthening-bar 7, that reaches from the rear cf the baseplate of the frog forward beyond the throat, which is the point of greatest strain. This filling-piece is secured to the flange of the rail by bolts or rivets 8. It is shaped to fit the contour ot' the rail and bent to correspond with the taper or angle of the said frog.

9 represents an arm welded to the strengthening-arm 7. 10 represents parallel arms hinged thereto by bolt 11.

12 represents a filling-block which keeps the arms 10 apart sufficient to allow them to turn freely over the arms 9 and 14. The forward ends of said arms are hinged by bolt 13 to the arm 14, which is preferably bent round under the base-plate, passing through a slot cut in the same, a-nd secured by the pivotbolt 13.

In the modification shown in Fig. 2 the arm 14.- is prolonged above the plate and secured to the top side thereof by means of rivets 16. r1`he said arm 14, being rigid, furnishes a strong support to the pivot 13, on which the link-arms 10 journal at one end, the other journaling on the arm9. By means of this arm 9 secured to the strengtheningbar 7 the rail is held vertical to the baseplate and allowed to move outward freely under the strain of the train.

Having described my invention, what I claim is- The combination, with a railway-frog, of the stiffening-bar 7, rigidly secured to the web of the moving rail and provided with an arm 9 hinged to the link 10 and to the bar 14, secured to the base-plate, substantially as specified.

In testimony whereof I have hereunto set my hand.

FREDRIC C. WEIR. Witnesses:

J. WATSON Sms, T. SIMMONs. 

